C#

public static class ConstantMessages
{
    public static string ServerCommunicationFailure = "Message";
    public static string AuthenticationFailure = "Message";
}

try
{
   // Doing something that communicates with remote server
}
catch(Exception ex)
{
  throw new CommunicationException(ConstantMessages.ServerCommunicationFailure);
}

class EntryPoint
{
 private widgets[];

 public EntryPoint()
 {
   this.widgets = new widgets[1000]
   
   ...code here to populate 1000 widgets...
 }
 
 public Widgets[]
 {
   get { return this.widgets; }
 }
}

class widgets
{
 public string key;
 public string value;
}

public string GetWidgetValue(string key)
{
  string returnValue = null;

  foreach(widget w in this.widgets)
  {
    if (w.Key == key)
    {
      returnValue = w.value;
      break;
    }
  }
  
  return returnValue;
}

EntryPoint ep = new EntryPoint();
string value = ep.Widgets["widgetkey"];